Department of Ecology Learn about flood risks ahead of rainy season

October marks Flood Awareness Month in Washington, coinciding with the onset of fall rains and an increased risk of flooding. The Washington State Department of Ecology warns that flooding risks are heightened due to climate change, with all 39 counties experiencing significant floods since 1970. Major floods can disrupt local economies and threaten lives, exemplified by the December 2007 event that closed U. S. Interstate-5 and caused $900 million in damages.

The department outlines various types of flooding, including river, coastal, surface water, and flash flooding, each presenting unique risks. Urban areas face surface water flooding after prolonged rainfall, while flash floods can occur suddenly following heavy rains. Residents are urged to understand their flood risks and consider flood insurance, especially as climate change is expected to increase flood frequency and severity. The department serves as the lead agency for flood risk management, helping cities comply with floodplain laws and maintain enrollment in the National Flood Insurance Program. This awareness initiative aims to prepare communities for the rainy season and mitigate potential flooding impacts.